CN214857324U

CN214857324U - Finger contracture single-arm integrated orthopedic external fixation support

Info

Publication number: CN214857324U
Application number: CN202023352730.8U
Authority: CN
Inventors: 张涛; 梅晓龙
Original assignee: TIANJIN XINZHONG MEDICAL DEVICES CO Ltd
Current assignee: TIANJIN XINZHONG MEDICAL DEVICES CO Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-11-26
Anticipated expiration: 2030-12-28

Abstract

The utility model aims to provide a single-arm integrated orthopedic external fixation bracket with contracture fingers, which comprises a sliding plate, a sliding block and needle clamp components, wherein two arc-shaped track grooves are symmetrically arranged on the sliding plate, the sliding block is slidably arranged in the track grooves, the front end of the sliding block is fixedly provided with connecting rods, when the sliding block is positioned at the outermost side of the track grooves, the extension lines of the inner ends of the two connecting rods are positioned on the central line of the sliding plate, the two connecting rods are in a nearly vertical state, when the sliding block is positioned at the innermost side of the track grooves, the two connecting rods are positioned close to a straight connection, the connecting rods are sleeved with the two needle clamp components, the sliding plate is also provided with a driving component capable of driving the sliding block to synchronously slide in opposite directions or opposite directions, the sliding plate is arc-shaped, the central angle of the track grooves is between 30 and 45 degrees, the driving component comprises a bidirectional screw rod and a reversing block, the reversing block is rotatably arranged at the rear end of the sliding block.

Description

Finger contracture single-arm integrated orthopedic external fixation support

Technical Field

The utility model relates to the field of orthopedic medical equipment, in particular to a finger contracture single-arm integrated orthopedic external fixation support.

Background

Aiming at interphalangeal joint flexion contracture patients, phalanx correction needs to be carried out through auxiliary correction equipment, in the prior art, most of the auxiliary correction equipment are complex in structure and inconvenient to use, and when the phalanx is pulled, the pulling amplitude is not easy to control, so that secondary injury is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integrative orthopedics external fixation support of finger contracture single arm to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a single-armed integrative orthopedics external fixation support of finger contracture, includes sliding plate, slider and needle clamp subassembly, two curved track grooves have been seted up to the symmetry on the sliding plate, slider slidable mounting is in the track inslot, the front end fixed mounting of slider has the connective bar, and when the slider was located the outside in track groove, the inner extension line of two connective bars was located the central line of sliding plate, and two connective bars are and are close the vertical state, and when the slider was located the most inboard in track groove, two connective bars were in and are close a directness, cup jointed two needle clamp subassemblies on the connective bar, still be provided with on the sliding plate and drive the slider in opposite directions or the drive assembly of subtend synchronous slip.

As a further aspect of the present invention: the sliding plate is arc-shaped.

As a further aspect of the present invention: the central angle of the track groove is 30-45 degrees.

As a further aspect of the present invention: the drive assembly comprises a bidirectional screw rod and a reversing block, the reversing block is rotatably arranged at the rear end of the sliding block, and the bidirectional screw rod is in threaded connection with the reversing block.

As a further aspect of the present invention: and a rod cap is fixedly arranged at one end of the bidirectional screw rod.

As a further aspect of the present invention: the needle clamp assembly comprises a clamp sleeve, an inner core and a bolt, the inner core is slidably sleeved in the clamp sleeve, at least one part of the inner core extends out of the clamp sleeve, a mounting hole is formed in the extending part of the inner core, the hole axis direction of the mounting hole is perpendicular to the connecting rod, the bolt is in threaded connection with one side, far away from the mounting hole, of the inner core, and the outer end of the bolt is provided with a bolt cap.

As a further aspect of the present invention: the end part of the connecting rod is provided with a turned rivet which is turned outwards, and the outer diameter of the turned rivet is larger than the aperture of the inner core perforation.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses simple structure, convenient to use has two sliders through synchronous slidable mounting in the arc track inslot on the sliding plate, and the front end fixed mounting of slider has the connective bar, and the activity is provided with the needle clamp subassembly on the connective bar to drive the slider synchronous slip through drive assembly, thereby realize two sets of krystein needle reverse upsets, so that it produces the tractive power that lasts, thereby reach good correction effect.

Drawings

FIG. 1 is a schematic structural view of a finger contracture single-arm integrated orthopedic external fixation support;

FIG. 2 is a sectional view taken along the direction A-A in the single-arm integrated orthopedic external fixation support with finger contracture;

FIG. 3 is a sectional view in the direction B-B of the finger contracture single-arm integrated orthopedic external fixation frame;

FIG. 4 is a schematic view showing the state of correction of a finger contracture single-arm integrated orthopedic external fixation frame;

in the figure: the device comprises a sliding plate 1, a track groove 2, a sliding block 3, a needle clamp assembly 4, a bidirectional screw rod 5, a rod cap 6, a connecting rod 7, a reversing block 8, a Kirschner wire 9, a jacket 10, an inner core 11, a bolt 12 and a rivet 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, in the embodiment of the present invention, a finger contracture single-arm integrated orthopedic external fixation frame comprises a sliding plate 1, a sliding block 3 and a needle clamp assembly 4, wherein the sliding plate 1 is arc-shaped, two arc-shaped track grooves 2 are symmetrically formed in the sliding plate 1, the central angle of the track groove 2 is 30-45 degrees, the sliding block 3 is slidably mounted in the track groove 2, a connecting rod 7 is fixedly mounted at the front end of the sliding block 3, when the sliding block 3 is located at the outermost side of the track groove 2, the extension lines of the inner ends of the two connecting rods 7 are located on the central line of the sliding plate 1, and the two connecting rods 7 are approximately vertical, as shown in fig. 4, when the sliding block 3 is located at the innermost side of the track groove 2, the two connecting rods 7 are approximately directly connected to each other, the two needle clamp assemblies 4 are sleeved on the connecting rods 7, and the needle clamp assembly 4 is movable relative to the connecting rods 7, namely, the needle clamp assembly 4 can slide along the axial direction of the connecting rod 7 and can rotate around the connecting rod 7, the needle clamp assembly 4 is used for fixedly mounting the Kirschner wire 9, and the sliding plate 1 is also provided with a driving assembly capable of driving the sliding blocks 3 to slide oppositely or oppositely and synchronously.

During operation, the kirschner wires 9 are fixedly arranged on the needle clamp component 4, prejudgment is carried out according to the contracture angle of the fingers of a patient, the driving component is used for adjusting so that the two groups of kirschner wires 9 are in proper angles, the two groups of kirschner wires 9 are respectively fixed on the adjacent phalanges of the interphalangeal joints in a crossed mode, the needle clamp component 4 is rotated or slid so that the fixed position of the kirschner wires 9 is adjusted to avoid damaging the vascular nerves, after the needle body is fixed, the sliding block 3 is enabled to gradually slide outwards synchronously through the driving component, and continuous stretching force is generated so that the flexion contracture deformity of the interphalangeal joints is corrected slowly, the appearance and the function are enabled to achieve satisfactory effects, and complications such as blood vessels, nerve damage or needle channel infection do not exist.

Referring to fig. 2, in this embodiment, specifically, the driving assembly includes a bidirectional screw rod 5 and a reversing block 8, the reversing block 8 is rotatably installed at the rear end of the slider 3, and the bidirectional screw rod 5 is in threaded connection with the reversing block 8. When the bidirectional screw rod 5 is rotated, the two reversing blocks 8 move along the positive and negative threads of the bidirectional screw rod 5 relatively, so that the sliding block 3 is driven to synchronously slide in the track groove 2. In order to facilitate the rotation adjustment of the bidirectional screw rod 5, a rod cap 6 is fixedly arranged at one end of the bidirectional screw rod 5.

Referring to fig. 3, in this embodiment, specifically, the needle clamp assembly 4 includes a clamping sleeve 10, an inner core 11 and a bolt 12, the inner core 11 is slidably sleeved in the clamping sleeve 10, through holes for the connection rod 7 to pass through are provided on both the inner core 11 and the clamping sleeve 10, at least a portion of the inner core 11 extends outside the clamping sleeve 10, a mounting hole for the k-wire 9 to pass through is provided on an extension portion of the inner core 11, a hole axis direction of the mounting hole is perpendicular to the connection rod 7, a bolt 12 is connected to a side of the inner core 11 away from the mounting hole in a threaded manner, the bolt 12 can pass through the through hole of the inner core 11 and abut against the connection rod 7, a nut is provided at an outer end of the bolt 12, and an end surface of the nut can abut against the clamping sleeve 10.

When the Korotkoff needles are installed, the Korotkoff needles penetrate through the installation holes, the bolts 12 are screwed, the inner ends of the bolts 12 are abutted against the connecting rod 7, so that the clamping sleeve 10 and the inner core 11 are fixed on the connecting rod 7, at the moment, the bolt caps extrude the clamping sleeve 10 and enable the inner core 11 and the clamping sleeve 10 to move in the opposite direction, so that the clamping sleeve 10 compresses and fixes the Korotkoff needles 9, and the double fixing effect of fixing the Korotkoff needles 9, the clamping sleeve 10 and the inner core 11 by using one bolt 12 is achieved.

Preferably, in order to prevent the needle holder assembly 4 from being lost when it is slid out of the connecting rod 7 in the active state, the end of the connecting rod 7 is provided with an outwardly flanged rivet 13, and the outer diameter of the rivet 13 is larger than the diameter of the through hole of the inner core 11, so as to prevent the parts from being lost.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an integrative orthopedics external fixation support of finger contracture single arm which characterized in that: the needle clamp comprises a sliding plate, a sliding block and needle clamp assemblies, wherein two arc-shaped track grooves are symmetrically formed in the sliding plate, the sliding block is slidably mounted in the track grooves, connecting rods are fixedly mounted at the front ends of the sliding block, when the sliding block is located on the outermost side of the track grooves, the inner end extension lines of the two connecting rods are located on the central line of the sliding plate, the two connecting rods are close to the vertical state, when the sliding block is located on the innermost side of the track grooves, the two connecting rods are close to one straight connection, the two needle clamp assemblies are sleeved on the connecting rods, and a driving assembly capable of driving the sliding block to slide in opposite directions or opposite directions synchronously is further arranged on the sliding plate.

2. The finger contracture single-arm integrated orthopedic external fixation support according to claim 1, characterized in that: the sliding plate is arc-shaped.

3. The finger contracture single-arm integrated orthopedic external fixation support according to claim 1, characterized in that: the central angle of the track groove is 30-45 degrees.

4. The finger contracture single-arm integrated orthopedic external fixation support according to claim 1, characterized in that: the drive assembly comprises a bidirectional screw rod and a reversing block, the reversing block is rotatably arranged at the rear end of the sliding block, and the bidirectional screw rod is in threaded connection with the reversing block.

5. The finger contracture single-arm integrated orthopedic external fixation support according to claim 4, characterized in that: and a rod cap is fixedly arranged at one end of the bidirectional screw rod.

6. The finger contracture single-arm integrated orthopedic external fixation support according to claim 1, characterized in that: the needle clamp assembly comprises a clamp sleeve, an inner core and a bolt, the inner core is slidably sleeved in the clamp sleeve, at least one part of the inner core extends out of the clamp sleeve, a mounting hole is formed in the extending part of the inner core, the hole axis direction of the mounting hole is perpendicular to the connecting rod, the bolt is in threaded connection with one side, far away from the mounting hole, of the inner core, and the outer end of the bolt is provided with a bolt cap.

7. The finger contracture single-arm integrated orthopedic external fixation support according to claim 6, characterized in that: the end part of the connecting rod is provided with a turned rivet which is turned outwards, and the outer diameter of the turned rivet is larger than the aperture of the inner core perforation.